Anyone make a mistake buying first MH ?

We'll know soon! We bought our first one two weeks ago but haven't had it out on the road yet - that happens next week. We started out looking for a 26'- 28' Class C and wound up with a 30' Class A. We're surprised at how many people consider that to be "small"; having done nothing but tent-camping for years, it seems colossal to us. My only regret is that it lacks sliders, but that obviously wasn't a deal-breaker.

I don't think I'd want anything bigger than 30' but IF we get anything else, it'll have at least one slider.